JPS56166613A - Voltage to current converting circuit - Google Patents

Voltage to current converting circuit

Info

Publication number
JPS56166613A
JPS56166613A JP6984380A JP6984380A JPS56166613A JP S56166613 A JPS56166613 A JP S56166613A JP 6984380 A JP6984380 A JP 6984380A JP 6984380 A JP6984380 A JP 6984380A JP S56166613 A JPS56166613 A JP S56166613A
Authority
JP
Japan
Prior art keywords
voltage
converting circuit
operational amplifier
current converting
supplied
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6984380A
Other languages
Japanese (ja)
Inventor
Kazuo Yamaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP6984380A priority Critical patent/JPS56166613A/en
Publication of JPS56166613A publication Critical patent/JPS56166613A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection

Abstract

PURPOSE:To prevent the generation of a noise due to switching at an output terminal by connecting the output signal of the 1st voltage-current converting circuit to the input terminal of the 1st voltage-current converting circuit via a low-pass filter and the 2nd voltage-current converting circuit. CONSTITUTION:An input voltage signal from an input voltage signal source 1 is supplied to the input terminal of the 1st voltage-current converting circuit composed of an operational amplifier 3 of bridge constitution via an operational amplifier 10. Then, an output current signal from the operational amplifier 3 is supplied to a load 9 via a switch 8 and also supplied to the 2nd voltage-current converting circuit composed of an operational amplifier 13 of bridge constitution via a low-pass filter composed of an operational amplifier 12. Further, the output signal of the operational amplifier 13 is supplied to the input terminal of the operational amplifier 3. Therefore, since the output impedance Z0 of the 2nd voltage-current converting circuit is infinite, the 2nd voltage-current converting circuit does not exert any influence upon the input voltage signal supplied to the negative input terminal (-) of the operational amplifier 3.
JP6984380A 1980-05-26 1980-05-26 Voltage to current converting circuit Pending JPS56166613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6984380A JPS56166613A (en) 1980-05-26 1980-05-26 Voltage to current converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6984380A JPS56166613A (en) 1980-05-26 1980-05-26 Voltage to current converting circuit

Publications (1)

Publication Number Publication Date
JPS56166613A true JPS56166613A (en) 1981-12-21

Family

ID=13414484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6984380A Pending JPS56166613A (en) 1980-05-26 1980-05-26 Voltage to current converting circuit

Country Status (1)

Country Link
JP (1) JPS56166613A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980027A (en) * 1982-10-30 1984-05-09 Sony Corp Audio signal transmitting system
JPH09269340A (en) * 1996-04-02 1997-10-14 Oki Electric Ind Co Ltd Voltage-current conversion circuit
JP2009225086A (en) * 2008-03-17 2009-10-01 Onkyo Corp Voltage-current converter and audio amplifier with the same
JP2020014223A (en) * 2014-10-21 2020-01-23 邦男 中山 Current drive device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5980027A (en) * 1982-10-30 1984-05-09 Sony Corp Audio signal transmitting system
JPH09269340A (en) * 1996-04-02 1997-10-14 Oki Electric Ind Co Ltd Voltage-current conversion circuit
JP2009225086A (en) * 2008-03-17 2009-10-01 Onkyo Corp Voltage-current converter and audio amplifier with the same
JP2020014223A (en) * 2014-10-21 2020-01-23 邦男 中山 Current drive device

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